Skip credit check during revision only when the original version is credit approved

Summary:

We have requirement to skip credit check during revision only when the original version is credit approved. We are not concerned about Dollar change or any other changes in the order.

Skip credit check during revision if earlier version already being approved for Credit check (Credit case folder)

Please help with OM extension to achieve this requirement.

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Code Snippet (add any code snippets that support your topic, if applicable):